LTC2221IUP

Series:	*
Part Status:	Obsolete

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The LTC2221IUP is an 8-bit analog to digital converter (ADC) designed to provide high resolution and accuracy while consuming low amounts of power. It is ideal for data acquisition applications such as industrial test and measurement, medical imaging, and building control systems. The LTC2221IUP utilizes a state-of-the-art charge redistribution successive approximation register (SAR) architecture, which enables high conversion speeds and low power consumption. In addition, the LTC2221IUP features a temperature range of –40°C to 125°C, and is package in the tiny 3 mm × 3 mm 5-lead SOT-23 package.The LTC2221IUP operates from a single 1.8 V to 5 V analog supply and consumes only 1.1 mA of power. Its 8-bit sampling resolution enables the device to capture fine details in a signal. The part also features a fast conversion rate, with a throughput of up to 1.5 Msps. The device also features a low input capacitance of 3 pF and a 5 MHz full power bandwidth, enabling it to accurately sample high frequency signals. Furthermore, the LTC2221IUP features a reference buffer providing a 200 mV peak-to-peak output range, which helps to increase the accuracy of the conversion.The LTC2221IUP is designed for micropower applications requiring extremely low power consumption, making it ideal for battery operated and portable equipment. The device’s low-voltage operation also ensures that it can be easily integrated into systems operating from 1.8 V to 5 V supplies. The LTC2221IUP also features differential inputs and a user-selectable single-ended/differential analog input. This enables faster conversion times and more accurate readings, as well as reducing the number of external components required.The LTC2221IUP also has onboard on-chip logic to reduce the number of pins required in interfacing with external microcontrollers. The onboard logic enables the device to accept any combination of start trigger, gate, data rate select, and external reference, allowing it to operate with minimal modifications to the system design. The LTC2221IUP also features a test mode, enabling the user to verify chip performance, as well as a power-down feature, which allows the device to be put into low-power sleep mode to save power.Overall, the LTC2221IUP is a very capable ADC for a wide variety of applications. Its ultra-low power consumption combined with its 8-bit resolution and high-speed sampling make it perfect for data acquisition. Additionally, its onboard logic, wide input range, and onboard test & power down features make it an ideal choice for low-power and complex applications.

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